Light emitting tube



FIG. 1 is a top perspective view thereof;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a bottom perspective view thereof.

The broken lines in the above figures are for illustrative purposes only, show environmental structure, and form no part of the claimed design. 

The ornamental design for a light emitting tube, as shown and described. 